Adjustable lamp



FIG. 1 is a top, front, left side perspective view of an adjustable lamp showing our new design;

FIG. 2 is a top plan view thereof on an enlarged scale;

FIG. 3 is a front elevational view thereof on an enlarged scale;

FIG. 4 is a right side elevational view thereof relative to the front of the lamp on an enlarged scale;

FIG. 5 is a left side elevational view thereof relative to the front of the lamp on an enlarged scale;

FIG. 6 is a rear elevational view thereof on an enlarged scale; and,

FIG. 7 is a bottom plan view thereof on an enlarged scale.

The articulated arm and the circular fluorescent lamp are shown in broken lines for illustrative purposes only and form no part of the claimed design. 

The ornamental design for an adjustable lamp, as shown and described. 